Applied extensive Java expertise to design and deploy critical security solutions for software supply chains, ensuring on-time and within-budget delivery of key features. Participated in all phases of the software development lifecycle, driving efficiency and security.

• Implemented features to enhance vulnerability and license detection in customer's software products.
• Enhanced Java application performance through code optimization and refactoring and increasing overall efficiency.
• Collaborated on the redesign of the ScyllaDB schema, contributing to efforts to enhance database responsiveness.

Engineered and optimized scalable e-commerce applications using Java and Spring Boot, ensuring secure and efficient online transaction processing through seamless integration with various payment aggregators. Collaborated effectively with cross-functional teams to deliver high-performance solutions that supported key business objectives.

• Implemented reactive Java APIs for payment gateway integration, reducing latency and ensuring robust processing.
• Led the migration of legacy Java systems to a Microservices Architecture, improved application resilience and maintenance.
• Actively participated in code reviews, contributing to improved code quality and knowledge sharing within the team.

Developed and maintained enterprise-grade applications for E-Commerce customers using Java, Spring Framework, and Cloud Services. Managed the entire development life-cycle from requirements gathering to development and testing.

• Created and developed a Sourcing service to solve sourcing problem, which significantly reduced delivery costs.
• Participated in the development of a IVR bot for a call center using DialogFlow.
• Optimized architecture to reduce cost of cloud resources in GCP.

Took part in development and testing services for customers. Involved in the full life-cycle of an application - from gathering requirements to production operation.

• Implemented migration data pipeline to migrate data from legacy system to new version with min downtime.
• Successfully launched a government application that increased the speed of processing advertising control.
• Implemented Event-Sourcing data migration, which increased the amount of data available for reporting.

Built Java solutions for GSM billing, fraud prevention, and service/traffic analysis.

• Implemented features for GSM providers and modernized legacy services to reduce tech debt and increase maintainability.
• Participated in Big Data analysis, supporting the development of more effective fraud detection strategies.
• Applied MapReduce techniques in MongoDB to process and analyze large datasets, enhancing data processing capabilities.